There are four congruent right triangles, whose right sides are a and B respectively, and the hypotenuse is C. they can be used to form a graph that can verify the Pythagorean theorem. Please draw a graph and use it to verify the Pythagorean theorem

There are four congruent right triangles, whose right sides are a and B respectively, and the hypotenuse is C. they can be used to form a graph that can verify the Pythagorean theorem. Please draw a graph and use it to verify the Pythagorean theorem

You put the unequal side right angle △ triangle ruler in stationery (not losing generality, let ∠ a = 30 °, 60 ° and ∠ C = 90 °) into a large square with four sides (the side length is the hypotenuse of the triangle, the right angle ∠ C is in the middle, a and ∠ B of another △ complement each other to form an angle of the square), so that there is a small square in the middle